Alert archive / North Dakota / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 61, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 10, 1998, 6:15 PM CDT for Ransom County, North Dakota. It was in force for 30 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 10, 1998, 6:15 PM CDT (23:15 UTC)
- Expired
- Jun 10, 1998, 6:45 PM CDT
- In force
- 30 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
County Ransom County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 122 km from the middle of the area, began a volume at 23:15 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 10, 6:30 PM CDT | Hail 1 | Lisbon, ND |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 11.3 hours before the alert went out and 182 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 552 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 97 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
595 WUUS1 KFAR 102323 SVRFAR NDC073-102345- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING...CORRECTED FOR WORDING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 615 PM CDT WED JUN 10 1998 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... RANSOM COUNTY IN SOUTHEASTERN NORTH DAKOTA * UNTIL 645 PM CDT * AT 612 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM 45 MILES SOUTH OF VALLEY CITY OR 13 MILES SOUTHWEST OF LISBON MOVING NORTHEAST AT 20 MPH. DAMAGING WIND...LARGE HAIL...DEADLY LIGHTNING AND TORNADOES ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. SEEK SHELTER IN A REINFORCED BUILDING IMMEDIATELY
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 10, 10:20 AM CDT, 7 hours 55 minutes earlier.
Area forecast discussion, Jun 10, 10:20 AM CDT, 7 hours 55 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 1020 AM CDT WED JUN 10 1998 88D RADAR INDICATED AREA OF PRECIPITATION WAS ENTERING WESTERN CWA. WENT AHEAD AND UPDATED ZONES ALREADY FOR THIS REASON. SATELLITE SHOWS TOPS COOLING OVER BARNES COUNTY. WAA ADVECTION AT 700 MB IS ADDING TO INSTABILITY. SYNOPTIC SCALE LIFT AVAILABLE WITH VORTICITY MAXIMUM OVER WEST CENTRAL MINNESOTA. SIGNIFICANT DEEP CONVECTION FOR THIS AFTERNOON MAY BE LIMITED BY CLOUDS COVERING PORTIONS OF CWA...POTENTIALLY LIMITING SOLAR INSOLATION. THERE IS A LACK OF MESOSCALE LIFT UNTIL LATE THIS AFTERNOON AND EVENING. BEST FRONTOGENETICAL FORCING WILL OCCUR SOUTH OF CWA IN NEBRASKA AND IOWA. HOWEVER...SURFACE TROUGH LOCATED IN EASTERN MONTANA IS FORECAST TO DEVELOP EASTWARD THIS AFTERNOON AND TONIGHT. WP
In the hours before
Special weather statement, Jun 10, 12:40 PM CDT, 5 hours 35 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052-053-101200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 1240 PM CDT WED JUN 10 1998 ...SEVERE WEATHER IS POSSIBLE THIS AFTERNOON AND TONIGHT IN EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA... THE THREAT OF SEVERE THUNDERSTORMS EXISTS THIS AFTERNOON AND TONIGHT IN EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA. THE MAIN THREAT WITH THE STORMS WILL BE LARGE HAIL. THE LIKELY PERIOD OF THUNDERSTORMS IN EASTERN NORTH DAKOTA WILL BE AFTER 2 PM UNTIL ABOUT 8 PM CDT. THUNDERSTORMS ARE EXPECTED TO HAPPEN IN NORTHWEST AND WEST-CENTRAL MINNESOTA AFTER 5 PM CDT AND CONTINUING UNTIL ABOUT MIDNIGHT. A TROUGH OF LOW PRESSURE WILL MOVE EAST ACROSS THE DAKOTAS THROUGH TONIGHT. THIS SYSTEM WILL COMBINE WITH MOIST AND MODERATELY UNSTABLE AIR PRODUCING THE THUNDERSTORMS. WP
Special weather statement, Jun 10, 12:40 PM CDT, 5 hours 35 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052-053-101200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 1240 PM CDT WED JUN 10 1998 ...SEVERE WEATHER IS POSSIBLE THIS AFTERNOON AND TONIGHT IN EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA... THE THREAT OF SEVERE THUNDERSTORMS EXISTS THIS AFTERNOON AND TONIGHT IN EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA. THE MAIN THREAT WITH THE STORMS WILL BE LARGE HAIL. THE LIKELY PERIOD OF THUNDERSTORMS IN EASTERN NORTH DAKOTA WILL BE AFTER 2 PM UNTIL ABOUT 8 PM CDT. THUNDERSTORMS ARE EXPECTED TO HAPPEN IN NORTHWEST AND WEST-CENTRAL MINNESOTA AFTER 5 PM CDT AND CONTINUING UNTIL ABOUT MIDNIGHT. A TROUGH OF LOW PRESSURE WILL MOVE EAST ACROSS THE DAKOTAS THROUGH TONIGHT. THIS SYSTEM WILL COMBINE WITH MOIST AND MODERATELY UNSTABLE AIR PRODUCING THE THUNDERSTORMS. WP
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 6:29 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 31 min |
| Jun 10, 6:48 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Sargent | 32 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 1998Every severe thunderstorm warning in 1998
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.